Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³).

Front

How does density affect whether an object will float or sink in a fluid?

Back

An object will float in a fluid if its density is less than the density of the fluid; it will sink if its density is greater.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What happens to the density of a substance when it is heated?

Back

Generally, the density of a substance decreases when it is heated because its volume increases.

Front

What is the relationship between mass and volume in determining density?

Back

Density increases with an increase in mass if the volume remains constant.

Front

Which is denser: a kilogram of feathers or a kilogram of lead?

Back

They have the same mass (1 kg), but lead is denser than feathers because it occupies less volume.

Front

What is buoyancy?

Back

Buoyancy is the upward force exerted by a fluid that opposes the weight of an object immersed in it.

Front

How does the density of air affect the behavior of helium balloons?

Back

Helium balloons rise because helium is less dense than the surrounding air.

Front

What is the least dense liquid among oil, water, and syrup?

Back

Oil is the least dense liquid among the three.

Front

If two objects have the same volume but different masses, which one is denser?

Back

The object with the greater mass is denser.